state gov Kolkata Police SI Mock Test 2023 Quantitative Aptitude Ratio and Proportion

যদি a ∶ b = 3 ∶ 5 এবং b ∶ c = 3 ∶ 4 হয়, তাহলে 2a ∶ 3b ∶ 3c এর মান কত?

1
6 ∶ 45 ∶ 22
2
18 ∶ 25 ∶ 20
3
6 ∶ 15 ∶ 20
4
28 ∶ 45 ∶ 22
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